@Kabello 

Can you show me a screenshot of the disappearing device?

what type of devices disappear

  @MR.S 

I have 33 devices, now is showing 19. All devices appear as wired, but I have at least 18 Wi-Fi devices.

Most are smart switches, cellphones, and secure cam that disappear.

  @Kabello 

Ok then I understand. it is by definition not a device but a client.

but ok, yes, I've seen the same thing, it's always been like that. I have a similar setup at my kids home, there I have ER605v2 as a router and everything else is unifi where client appears randomly in Omada,,

I also have a lab at work with ER707-M2 where I have cisco switches which client are almost never visible under the client tab. At home I have a full Omada stack where all clients are visible all the time.

Unifi, which has a lot in common with Omada, has exactly the same problem, so it probably has something to do with how the system is built.

I don't think it will help, but you can try and enable LLDP on the router to see if it gets any better.

  @Fae 

Thanks for answering.

Remembering that in version 5.14.20.9, the problem is even worse, cause' no device is shown.

Thanks again

Hi @Fae 

Today I installed the new version 5.14.26.1 and unfortunately the problem persists.

This new version did not fix the problem.

@Fae 

I updated to Omada v5.14.30.7 and ER606 to v2.2.6, but this issue remains.

You said that yours engineers found some possible roots of this issue, and they would fix it in next controller version, but unfortunately it didn't happen.

Any idea how to fix it?

Thanks